Abstract
The photoluminescence kinetics in CdS nanocrystals produced by the Langmuir-Blodgett technique is studied at a temperature of 5 K. The photoluminescence kinetics is described by the sum of two exponential functions, with characteristic times of about 30 and 160 ns. It is found that the fast and slow decay times become longer, as the nanocrystal size increases. Analysis of the data shows that the fast decay time is controlled by trion recombination in nanocrystals with defects, whereas the slow decay time is controlled by the annihilation of optically inactive excitons in nanocrystals without defects. It is established that, as the nanocrystal size is decreased, the fraction of imperfect nanocrystals is reduced because of an increase in the energy of defect formation.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
N. N. Ledentsov, V. M. Ustinov, V. A. Shchukin, P. S. Kop’ev, Zh. I. Alfrov, and D. Bimberg, Semiconductors 32, 343 (1998).
J. Kwak, W. K. Bae, D. Lee, I. Park, J. Lim, M. Park, H. Cho, H. Woo, Do Y. Yoon, K. Char, S. Lee, and C. Lee, Nano Lett. 12, 2362 (2012).
K. Colbow, Phys. Rev. 141, 742 (1966).
D. Magde and H. Mahr, Phys. Rev. B 2, 4098 (1970).
C. H. Henry and K. Nassau, Phys. Rev. B 1, 1628 (1970).
M. D. Garrett, A. D. Dukes III, J. R. McBride, N. J. Smith, S. J. Pennycook, and S. J. Rosenthal, J. Phys. Chem. C 112, 12736 (2008).
V. Klimov, P. H. Bolivar, and H. Kurz, Phys. Rev. B 53, 1463 (1996).
B. Yang, J. E. Schneeloch, Z. Pan, M. Furis, and M. Achermann, Phys. Rev. B 81, 073401 (2010).
A. Y. Cho and J. R. Arthur, Progr. Solid State Chem. 10, 157 (1975).
N. A. Kotov, F. C. Meldrum, C. Wu, and J. H. Fendler, J. Phys. Chem. 98, 2735 (1994).
A. V. Nabok, A. K. Ray, and A. K. Hassan, J. Appl. Phys. 88, 3 (2000).
E. A. Bagaev, K. S. Zhuravlev, L. L. Sveshnikova, I. A. Badmaeva, S. M. Repinskii, and M. Voelskov, Semiconductors 37, 1321 (2003).
K. A. Svit, D. Yu. Protasov, L. L. Sveshnikova, A. K. Shestakov, S. A. Tiis, and K. S. Zhuravlev, Semiconductors 48, 1205 (2014).
E. A. Bagaev, K. S. Zhuravlev, and L. L. Sveshnikova, Semiconductors 40, 1188 (2006).
X. Xu, Ya. Zhao, E. J. Sie, Yu. Lu, Bo Liu, S. A. Ekahana, X. Ju, Q. Jiang, J. Wang, H. Sun, T. C. Sum, C. von Alfred Huan, Y. P. Feng, and Q. Xiong, ACS Nano 5, 3660 (2011).
P. Mandal, S. S. Talwar, R. S. Srinivasa, and S. S. Major, Appl. Phys. A 94, 577 (2009).
N. Chestnoy, T. D. Harris, R. Hull, and L. E. Brus, J. Phys. Chem. 90, 3393 (1986).
J. W. M. Chon, M. Gu, C. Bullen, and P. Mulvaney, Appl. Phys. Lett. 84, 4472 (2004).
L. E. Brus, J. Chem. Phys. 80, 4403 (1984).
B. Patton, W. Langbein, and U. Woggon, Phys. Rev. B 68, 125316 (2003).
J. Li and J.-B. Xia, Phys. Rev. B 62, 12613 (2000).
Al. L. Efros, M. Rosen, M. Kuno, M. Nirmal, D. J. Norris, and M. Bawendi, Phys. Rev. B 54, 4843 (1996).
K. Leung, S. Pokrant, and K. B. Whaley, Phys. Rev. B 57, 12291 (1998).
P. Facci and M. P. Fontana, Solid State Commun. 108, 5 (1998).
L. C. Andreani, A. d’Andrea, and R. del Sole, Phys. Lett. A 168, 451 (1992).
J. Feldmann, G. Peter, E. O. Gobel, P. Dawson, K. Moore, C. Foxon, and R. J. Elliott, Phys. Rev. Lett. 59, 2337 (1987).
J. M. Elward and A. Chakraborty, J. Chem. Theory Comput. 9, 4351 (2013).
C. Javaux, B. Mahler, B. Dubertret, A. Shabaev, A. V. Rodina, Al. L. Efros, D. R. Yakovlev, F. Liu, M. Bayer, G. Camps, L. Biadala, S. Buil, X. Quelin, and J.-P. Hermier, Nature Nanotechnol. 8, 206 (2013).
C. Galland, Ya. Ghosh, A. Steinbruck, J. A. Hollingsworth, H. Htoon, and V. I. Klimov, Nature Commun. 3(908), 69 (2012).
P. P. Jha and P. Guyot-Sionnest, ACS Nano 3, 1011 (2009).
X. Xu, Ya. Zhao, E. J. Sie, Yu. Lu, Bo Liu, S. A. Ekahana, X. Ju, Q. Jiang, J. Wang, H. Sun, T. C. Sum, C. Hon Alfred Huan, Y. P. Feng, and Q. Xiong, ACS Nano 5, 3660 (2011).
Yo. Kobayashi, T. Nishimura, H. Yamaguchi, and N. Tamai, J. Phys. Chem. Lett. 2, 1051 (2011).
G. M. Dalpian and J. R. Chelikowsky, Phys. Rev. Lett. 96, 226802 (2006).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.A. Zarubanov, K.S. Zhuravlev, 2015, published in Fizika i Tekhnika Poluprovodnikov, 2015, Vol. 49, No. 3, pp. 392–398.
Rights and permissions
About this article
Cite this article
Zarubanov, A.A., Zhuravlev, K.S. Photoluminescence kinetics in CdS nanoclusters formed by the Langmuir-Blodgett technique. Semiconductors 49, 380–386 (2015). https://doi.org/10.1134/S1063782615030252
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063782615030252